Formation and characterization of water-soluble hetero capsules derived from multiple ionic interactions |
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| Authors: | Takahiro Kusukawa Chikako Katano Chizuru Kim |
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| Institution: | Department of Chemistry and Materials Technology, Graduate School of Science and Technology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku Kyoto 606-8585, Japan |
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| Abstract: | We now report the formation and characterization of water-soluble hetero-capsules 1·2 resulting from the ionic interactions between positively charged flexible aniline hydrochloride 1 and negatively charged phosphonate 2 having rigid homooxacalix3]arene units. The formation of the molecular capsules was studied by NOESY, DOSY NMR spectroscopy and ESI-Mass spectrometry. The water solubility of the capsules is improved by the introduction of mono- or triethylene glycol substituents in the homooxacalix3]arene-based phosphonate units 2. |
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